```html
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    <title>ZGC：低延迟垃圾收集器深度解析</title>
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            justify-content: center;
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        .drop-cap:first-letter {
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            margin-right: 0.5rem;
            color: #3B82F6;
            font-weight: bold;
        }
    </style>
</head>
<body class="bg-gray-50">
    <!-- Hero Section -->
    <section class="hero-gradient text-white py-24 px-4 md:px-0">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-12 md:mb-0">
                    <div class="inline-block px-3 py-1 mb-4 text-sm font-semibold bg-white bg-opacity-20 rounded-full">
                        <i class="fas fa-microchip mr-2"></i> Java 性能优化
                    </div>
                    <h1 class="text-4xl md:text-5xl font-bold leading-tight mb-6">探索 ZGC：<br>低延迟垃圾收集器的革命</h1>
                    <p class="text-xl md:text-2xl opacity-90 mb-8">突破性技术实现的毫秒级停顿，让Java应用性能达到全新高度</p>
                    <div class="flex space-x-4">
                        <a href="#overview" class="px-6 py-3 bg-white text-blue-600 font-semibold rounded-lg hover:bg-gray-100 transition duration-300">
                            <i class="fas fa-book-open mr-2"></i>了解详情
                        </a>
                    </div>
                </div>
                <div class="md:w-1/2 md:pl-12">
                    <div class="bg-white bg-opacity-10 p-8 rounded-xl backdrop-blur-sm border border-white border-opacity-20">
                        <h3 class="text-2xl font-bold mb-4">关键性能指标</h3>
                        <div class="space-y-4">
                            <div>
                                <div class="flex justify-between mb-1">
                                    <span class="font-medium">停顿时间</span>
                                    <span class="font-bold">≤10ms</span>
                                </div>
                                <div class="w-full bg-white bg-opacity-20 rounded-full h-2.5">
                                    <div class="bg-green-400 h-2.5 rounded-full" style="width: 95%"></div>
                                </div>
                            </div>
                            <div>
                                <div class="flex justify-between mb-1">
                                    <span class="font-medium">堆内存支持</span>
                                    <span class="font-bold">TB级别</span>
                                </div>
                                <div class="w-full bg-white bg-opacity-20 rounded-full h-2.5">
                                    <div class="bg-blue-400 h-2.5 rounded-full" style="width: 85%"></div>
                                </div>
                            </div>
                            <div>
                                <div class="flex justify-between mb-1">
                                    <span class="font-medium">并发性</span>
                                    <span class="font-bold">全并发</span>
                                </div>
                                <div class="w-full bg-white bg-opacity-20 rounded-full h-2.5">
                                    <div class="bg-purple-400 h-2.5 rounded-full" style="width: 100%"></div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Overview Section -->
    <section id="overview" class="py-20 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4">ZGC 概览</h2>
                <div class="w-24 h-1 bg-blue-500 mx-auto"></div>
            </div>
            
            <div class="bg-white rounded-xl shadow-lg p-8 mb-12 drop-cap">
                ZGC 是一种低延迟、可伸缩的垃圾收集器，旨在减少垃圾回收对应用程序的影响。它在 Java 11 中首次引入，并在后续版本中进行了改进。通过并发标记、并发回收和指针压缩等技术，ZGC 实现了对大规模堆内存的高效管理，并在垃圾回收过程中保持极低的停顿时间。
            </div>
            
            <div class="grid md:grid-cols-2 gap-8 mb-12">
                <div class="bg-white rounded-xl shadow-md p-8 card-hover transition duration-300">
                    <div class="feature-icon bg-blue-100 text-blue-600">
                        <i class="fas fa-bolt text-2xl"></i>
                    </div>
                    <h3 class="text-2xl font-bold mb-4">低延迟</h3>
                    <p class="text-gray-600">ZGC 旨在将垃圾回收的停顿时间减少到毫秒级别，这对于需要高响应性和低延迟的应用程序（如实时数据处理和金融交易系统）尤其重要。</p>
                </div>
                <div class="bg-white rounded-xl shadow-md p-8 card-hover transition duration-300">
                    <div class="feature-icon bg-purple-100 text-purple-600">
                        <i class="fas fa-expand-alt text-2xl"></i>
                    </div>
                    <h3 class="text-2xl font-bold mb-4">高可伸缩性</h3>
                    <p class="text-gray-600">它能够有效地处理大规模堆内存（TB 级别），并保持较低的停顿时间。适用于大数据处理和高性能计算环境。</p>
                </div>
            </div>
        </div>
    </section>

    <!-- How It Works Section -->
    <section class="py-20 bg-gray-100 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4">ZGC 工作原理</h2>
                <div class="w-24 h-1 bg-blue-500 mx-auto"></div>
            </div>
            
            <div class="mb-12">
                <div class="mermaid">
                    graph TD
                        A[应用程序线程] -->|分配对象| B[ZGC 堆]
                        B --> C[并发标记阶段]
                        C -->|颜色标记| D[黑/灰/白对象]
                        D --> E[并发回收阶段]
                        E --> F[内存整理]
                        F -->|指针压缩| G[可用内存]
                        G --> A
                        style A fill:#f0f9ff,stroke:#0369a1
                        style B fill:#e0f2fe,stroke:#0ea5e9
                        style C fill:#cffafe,stroke:#0d9488
                        style D fill:#ccfbf1,stroke:#14b8a6
                        style E fill:#dcfce7,stroke:#22c55e
                        style F fill:#ecfdf5,stroke:#10b981
                        style G fill:#f0fdf4,stroke:#84cc16
                </div>
            </div>
            
            <div class="grid md:grid-cols-2 gap-8">
                <div>
                    <h3 class="text-2xl font-bold mb-6 text-blue-600">关键技术</h3>
                    <div class="space-y-6">
                        <div class="bg-white p-6 rounded-lg shadow-sm">
                            <h4 class="font-bold text-lg mb-2 flex items-center">
                                <span class="w-6 h-6 bg-blue-100 text-blue-600 rounded-full flex items-center justify-center mr-3">1</span>
                                基于指针压缩的虚拟化堆
                            </h4>
                            <p class="text-gray-600">ZGC 使用一种名为"指针压缩"的技术来管理大规模堆内存。它将虚拟内存划分为多个较小的区域，以便在垃圾回收时能够高效地处理。</p>
                        </div>
                        <div class="bg-white p-6 rounded-lg shadow-sm">
                            <h4 class="font-bold text-lg mb-2 flex items-center">
                                <span class="w-6 h-6 bg-blue-100 text-blue-600 rounded-full flex items-center justify-center mr-3">2</span>
                                分代化和颜色标记
                            </h4>
                            <p class="text-gray-600">ZGC 不使用传统的分代收集策略，而是采用了基于颜色的标记算法来跟踪对象的状态（例如，黑色、灰色、白色）。</p>
                        </div>
                        <div class="bg-white p-6 rounded-lg shadow-sm">
                            <h4 class="font-bold text-lg mb-2 flex items-center">
                                <span class="w-6 h-6 bg-blue-100 text-blue-600 rounded-full flex items-center justify-center mr-3">3</span>
                                并发标记和并发回收
                            </h4>
                            <p class="text-gray-600">ZGC 的垃圾回收过程主要由多个并发阶段组成，以减少应用程序的停顿时间。所有的标记和回收工作几乎都在后台进行。</p>
                        </div>
                    </div>
                </div>
                <div>
                    <h3 class="text-2xl font-bold mb-6 text-blue-600">工作原理图解</h3>
                    <div class="bg-white p-8 rounded-xl shadow-md">
                        <div class="flex items-center justify-center mb-6">
                            <div class="w-16 h-16 bg-blue-100 rounded-full flex items-center justify-center text-blue-600 mr-4">
                                <i class="fas fa-search text-2xl"></i>
                            </div>
                            <div>
                                <h4 class="font-bold">并发标记阶段</h4>
                                <p class="text-gray-500 text-sm">识别活动对象</p>
                            </div>
                        </div>
                        <div class="flex items-center justify-center mb-6">
                            <div class="w-16 h-16 bg-green-100 rounded-full flex items-center justify-center text-green-600 mr-4">
                                <i class="fas fa-recycle text-2xl"></i>
                            </div>
                            <div>
                                <h4 class="font-bold">并发回收阶段</h4>
                                <p class="text-gray-500 text-sm">回收无用对象</p>
                            </div>
                        </div>
                        <div class="flex items-center justify-center mb-6">
                            <div class="w-16 h-16 bg-purple-100 rounded-full flex items-center justify-center text-purple-600 mr-4">
                                <i class="fas fa-arrows-alt text-2xl"></i>
                            </div>
                            <div>
                                <h4 class="font-bold">并发搬移</h4>
                                <p class="text-gray-500 text-sm">整理内存空间</p>
                            </div>
                        </div>
                        <div class="flex items-center justify-center">
                            <div class="w-16 h-16 bg-indigo-100 rounded-full flex items-center justify-center text-indigo-600 mr-4">
                                <i class="fas fa-compress-alt text-2xl"></i>
                            </div>
                            <div>
                                <h4 class="font-bold">指针压缩</h4>
                                <p class="text-gray-500 text-sm">优化内存使用</p>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Features Section -->
    <section class="py-20 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4">ZGC 主要特性</h2>
                <div class="w-24 h-1 bg-blue-500 mx-auto"></div>
            </div>
            
            <div class="grid md:grid-cols-2 lg:grid-cols-4 gap-6">
                <div class="bg-white rounded-xl shadow-lg p-8 text-center card-hover transition duration-300">
                    <div class="w-20 h-20 bg-red-100 text-red-500 rounded-full flex items-center justify-center mx-auto mb-6">
                        <i class="fas fa-stopwatch text-3xl"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">低停顿</h3>
                    <p class="text-gray-600">ZGC 的主要特性是低停顿，即垃圾回收时的应用程序停顿时间极短。停顿时间通常在几毫秒以内。</p>
                </div>
                <div class="bg-white rounded-xl shadow-lg p-8 text-center card-hover transition duration-300">
                    <div class="w-20 h-20 bg-green-100 text-green-500 rounded-full flex items-center justify-center mx-auto mb-6">
                        <i class="fas fa-tachometer-alt text-3xl"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">高吞吐量</h3>
                    <p class="text-gray-600">通过并发标记和回收，ZGC 能够保持较高的应用程序吞吐量，适合对性能要求较高的场景。</p>
                </div>
                <div class="bg-white rounded-xl shadow-lg p-8 text-center card-hover transition duration-300">
                    <div class="w-20 h-20 bg-blue-100 text-blue-500 rounded-full flex items-center justify-center mx-auto mb-6">
                        <i class="fas fa-memory text-3xl"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">大堆支持</h3>
                    <p class="text-gray-600">ZGC 设计支持大规模堆内存，能够处理 TB 级别的内存，适用于大数据和高性能计算环境。</p>
                </div>
                <div class="bg-white rounded-xl shadow-lg p-8 text-center card-hover transition duration-300">
                    <div class="w-20 h-20 bg-purple-100 text-purple-500 rounded-full flex items-center justify-center mx-auto mb-6">
                        <i class="fas fa-eye-slash text-3xl"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3">透明性</h3>
                    <p class="text-gray-600">ZGC 尽量使垃圾回收过程对应用程序透明，减少对现有应用的改动需求。</p>
                </div>
            </div>
        </div>
    </section>

    <!-- Configuration Section -->
    <section class="py-20 bg-gray-100 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4">ZGC 配置指南</h2>
                <div class="w-24 h-1 bg-blue-500 mx-auto"></div>
            </div>
            
            <div class="bg-white rounded-xl shadow-lg overflow-hidden">
                <div class="md:flex">
                    <div class="md:w-1/2 bg-blue-50 p-8">
                        <h3 class="text-2xl font-bold mb-6 text-blue-700">基本配置参数</h3>
                        <div class="space-y-4">
                            <div>
                                <h4 class="font-bold text-lg mb-2">启用 ZGC</h4>
                                <div class="bg-gray-800 text-green-400 p-4 rounded-lg font-mono text-sm overflow-x-auto">
                                    -XX:+UseZGC
                                </div>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-2">设置堆内存大小</h4>
                                <div class="bg-gray-800 text-green-400 p-4 rounded-lg font-mono text-sm overflow-x-auto">
                                    -Xmx8g -Xms8g
                                </div>
                                <p class="text-gray-600 mt-2">建议将初始堆(-Xms)和最大堆(-Xmx)设置为相同的值</p>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-2">并行GC线程数</h4>
                                <div class="bg-gray-800 text-green-400 p-4 rounded-lg font-mono text-sm overflow-x-auto">
                                    -XX:ConcGCThreads=4
                                </div>
                            </div>
                        </div>
                    </div>
                    <div class="md:w-1/2 p-8">
                        <h3 class="text-2xl font-bold mb-6 text-blue-700">高级调优参数</h3>
                        <div class="space-y-4">
                            <div>
                                <h4 class="font-bold text-lg mb-2">分配尖峰容忍度</h4>
                                <div class="bg-gray-800 text-green-400 p-4 rounded-lg font-mono text-sm overflow-x-auto">
                                    -XX:ZAllocationSpikeTolerance=5
                                </div>
                                <p class="text-gray-600 mt-2">控制ZGC对突然内存分配需求的响应能力</p>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-2">最大堆保留百分比</h4>
                                <div class="bg-gray-800 text-green-400 p-4 rounded-lg font-mono text-sm overflow-x-auto">
                                    -XX:ZHeapReservePercent=25
                                </div>
                                <p class="text-gray-600 mt-2">为并发操作预留的堆内存百分比</p>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-2">详细日志记录</h4>
                                <div class="bg-gray-800 text-green-400 p-4 rounded-lg font-mono text-sm overflow-x-auto">
                                    -Xlog:gc*=info:file=gc.log:time,uptime,level,tags
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Use Cases Section -->
    <section class="py-20 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4">ZGC 适用场景</h2>
                <div class="w-24 h-1 bg-blue-500 mx-auto"></div>
            </div>
            
            <div class="grid md:grid-cols-2 gap-8">
                <div class="bg-white rounded-xl shadow-lg overflow-hidden">
                    <div class="h-48 bg-gradient-to-r from-blue-400 to-blue-600 flex items-center justify-center">
                        <i class="fas fa-exchange-alt text-white text-6xl"></i>
                    </div>
                    <div class="p-8">
                        <h3 class="text-2xl font-bold mb-4">低延迟应用</h3>
                        <p class="text-gray-600 mb-6">高频交易系统、实时数据处理平台等对延迟极度敏感的应用场景。ZGC的毫秒级停顿特性可以确保交易和数据处理不受垃圾回收影响。</p>
                        <div class="flex items-center text-gray-500">
                            <i class="fas fa-check-circle text-green-500 mr-2"></i>
                            <span>金融交易系统</span>
                        </div>
                        <div class="flex items-center text-gray-500 mt-2">
                            <i class="fas fa-check-circle text-green-500 mr-2"></i>
                            <span>实时推荐引擎</span>
                        </div>
                        <div class="flex items-center text-gray-500 mt-2">
                            <i class="fas fa-check-circle text-green-500 mr-2"></i>
                            <span>在线游戏服务器</span>
                        </div>
                    </div>
                </div>
                <div class="bg-white rounded-xl shadow-lg overflow-hidden">
                    <div class="h-48 bg-gradient-to-r from-purple-400 to-purple-600 flex items-center justify-center">
                        <i class="fas fa-database text-white text-6xl"></i>
                    </div>
                    <div class="p-8">
                        <h3 class="text-2xl font-bold mb-4">大规模内存应用</h3>
                        <p class="text-gray-600 mb-6">大数据处理、科学计算、内存数据库等需要处理TB级别数据的应用。ZGC的高可扩展性能够有效管理超大堆内存。</p>
                        <div class="flex items-center text-gray-500">
                            <i class="fas fa-check-circle text-green-500 mr-2"></i>
                            <span>Spark/Hadoop作业</span>
                        </div>
                        <div class="flex items-center text-gray-500 mt-2">
                            <i class="fas fa-check-circle text-green-500 mr-2"></i>
                            <span>内存数据库</span>
                        </div>
                        <div class="flex items-center text-gray-500 mt-2">
                            <i class="fas fa-check-circle text-green-500 mr-2"></i>
                            <span>机器学习模型服务</span>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Comparison Section -->
    <section class="py-20 bg-gray-100 px-4">
        <div class="container mx-auto max-w-6xl">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4">ZGC 与其他GC比较</h2>
                <div class="w-24 h-1 bg-blue-500 mx-auto"></div>
            </div>
            
            <div class="bg-white rounded-xl shadow-lg overflow-hidden">
                <div class="overflow-x-auto">
                    <table class="min-w-full divide-y divide-gray-200">
                        <thead class="bg-gray-50">
                            <tr>
                                <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">特性</th>
                                <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">ZGC</th>
                                <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">G1</th>
                                <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">CMS</th>
                                <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Parallel</th>
                            </tr>
                        </thead>
                        <tbody class="bg-white divide-y divide-gray-200">
                            <tr class="hover:bg-gray-50">
                                <td class="px-6 py-4 whitespace-nowrap font-medium">停顿时间</td>
                                <td class="px-6 py-4 whitespace-nowrap text-green-600 font-bold">毫秒级</td>
                                <td class="px-6 py-4 whitespace-nowrap">几十毫秒</td>
                                <td class="px-6 py-4 whitespace-nowrap">几十毫秒</td>
                                <td class="px-6 py-4 whitespace-nowrap">秒级</td>
                            </tr>
                            <tr class="hover:bg-gray-50">
                                <td class="px-6 py-4 whitespace-nowrap font-medium">堆大小</td>
                                <td class="px-6 py-4 whitespace-nowrap text-green-600 font-bold">TB级别</td>
                                <td class="px-6 py-4 whitespace-nowrap">数百GB</td>
                                <td class="px-6 py-4 whitespace-nowrap">数十GB</td>
                                <td class="px-6 py-4 whitespace-nowrap">数十GB</td>
                            </tr>
                            <tr class="hover:bg-gray-50">
                                <td class="px-6 py-4 whitespace-nowrap font-medium">并发性</td>
                                <td class="px-6 py-4 whitespace-nowrap text-green-600 font-bold">全并发</td>
                                <td class="px-6 py-4 whitespace-nowrap">部分并发</td>
                                <td class="px-6 py-4 whitespace-nowrap">部分并发</td>
                                <td class="px-6 py-4 whitespace-nowrap">无</td>
                            </tr>
                            <tr class="hover:bg-gray-50">
                                <td class="px-6 py-4 whitespace-nowrap font-medium">压缩</td>
                                <td class="px-6 py-4 whitespace-nowrap text-green-600 font-bold">并发压缩</td>
                                <td class="px-6 py-4 whitespace-nowrap">部分压缩</td>
                                <td class="px-6 py-4 whitespace-nowrap">无压缩</td>
                                <td class="px-6 py-4 whitespace-nowrap">全压缩</td>
                            </tr>
                            <tr class="hover:bg-gray-50">
                                <td class="px-6 py-4 whitespace-nowrap font-medium">适用版本</td>
                                <td class="px-6 py-4 whitespace-nowrap">Java 11+</td>
                                <td class="px-6 py-4 whitespace-nowrap">Java 7+</td>
                                <td class="px-6 py-4 whitespace-nowrap">Java 1.4+</td>
                                <td class="px-6 py-4 whitespace-nowrap">Java 1.2+</td>
                            </tr>
                        </tbody>
                    </table>
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